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<h1>libdill: Structured Concurrency for C</h1>

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<h1 id="name">NAME</h1>
<p>chdone - half-closes a channel</p>
<h1 id="synopsis">SYNOPSIS</h1>
<div class="sourceCode"><pre class="sourceCode c"><code class="sourceCode c"><span class="pp">#include </span><span class="im">&lt;libdill.h&gt;</span>

<span class="dt">int</span> chdone(
    <span class="dt">int</span> ch);</code></pre></div>
<h1 id="description">DESCRIPTION</h1>
<p>Closes an outbound half of the channel. When the peer receives all the messages sent prior to the calling <strong>chdone</strong> all its subsequent attempts to receive will fail with <strong>EPIPE</strong> error.</p>
<p><strong>ch</strong>: The channel.</p>
<h1 id="return-value">RETURN VALUE</h1>
<p>In case of success the function returns 0. In case of error it returns -1 and sets <strong>errno</strong> to one of the values below.</p>
<h1 id="errors">ERRORS</h1>
<ul>
<li><strong>EBADF</strong>: Invalid handle.</li>
<li><strong>ENOTSUP</strong>: The handle does not support this operation.</li>
<li><strong>EPIPE</strong>: chdone was already called on this channel.</li>
</ul>
<h1 id="example">EXAMPLE</h1>
<div class="sourceCode"><pre class="sourceCode c"><code class="sourceCode c"><span class="dt">int</span> ch[<span class="dv">2</span>];
chmake(ch);
chsend(ch, <span class="st">&quot;ABC&quot;</span>, <span class="dv">3</span>, <span class="dv">-1</span>);
chdone(ch);</code></pre></div>
<h1 id="see-also">SEE ALSO</h1>
<p><strong>chmake</strong>(3) <strong>chmake_mem</strong>(3) <strong>choose</strong>(3) <strong>chrecv</strong>(3) <strong>chsend</strong>(3)</p>
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